Right now, we’ve just completed testing for something called Technology Readiness Level 4 or TRL4. We have put an inverter demonstrator to test to validate technology design assumptions in our PHIL – “Power Hardware-in-the-Loop” laboratory environment in Munich.
The lab test was carried out with our full inverter demonstrator, following tests with a stand-in prototype or standalone parts in previous steps. The level of readiness applies to the fact that we’ve used pre-industrialisation components and a representative manufacturing process much closer to our end goal.
The inverter we’ve tested has functions and specifications that are in accordance with our modular inverter platform and series product philosophy. We are designing our future inverter product as an integral part of our electric propulsion units for Urban and Regional Air Mobility, as a solution for efficient, reliable and compact electric machine control and fault protection, enabling 100-200 kW power output per module at a voltage level ranging from 500 to 900 V.